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Fast Propagation Algorithms to Support Real-Time RF Visualization

Award Information
Agency: Department of Defense
Branch: Army
Contract: A982-0702
Agency Tracking Number: A982-0702
Amount: $68,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1999
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1936 Arlington Blvd., Suite 113
Charlottesville, VA 22903
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Donald Brown
 (804) 977-0600
Business Contact
Phone: () -
Research Institution
N/A
Abstract

Not Available SunPower proposes a high-efficiency, radiation-tolerant, thin silicon photovoltaic cell for space power generation. Compared to competing III-V (GaAs) photovoltaic cells, this cell is expected to provide nearly equivalent output power at about one-quarter of the cost. Based on preliminary simulations, we expect that the cell will achieve 18.8% beginning-of-life (BOL) AMO efficiency. Using SunPower¿s experimentally validated degradation models for lifetime surface recombination velocity, and emitter saturation current, we predict 15.7% end-of-life (EOL) efficiency after 1E15/cm2 of 1 MeV electron irradiation. At EOL, the cell is expected to provide over 80% of its BOL output power, making it as, or more, radiation tolerant than a typical GaAs/Ge cell. The specific power of this cell is projected to be more than 1.0 kW/kg at EOL, which is significantly, better than competing III-V cells. The cell design incorporates very thin float-zone (FZ) wafers with back-side point-contacts, similar to photovoltaic cells SunPower has commercialized for solar airplane and terrestrial concentrator applications. Phase I will fund process development, fabrication of prototype cells, and preliminary radiation tolerance testing

* Information listed above is at the time of submission. *

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